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require_once('adodb/adodb.inc.php');
class adoDbConnector
{
private static $instance = null;
public static function getInstance()
{
if (self::$instance == NULL)
{
self::$instance = new adoDbConnector();
}
return self::$instance;
}
private function __construct() { }
public function __clone()
{
trigger_error('No __clone()!', E_USER_ERROR);
}
public function __wakeup()
{
trigger_error('No __wakeup()!', E_USER_ERROR);
}
public function connect($connectionType, $connectionData)
{
switch($connectionType)
{
case 0:
return self::generalConnect($connectionData);
break;
case 1:
return self::dsnConnect($connectionData);
break;
case 2:
return self::xmlConnect($connectionData);
break;
default:
throw new Exception('Wrong type of connection!');
}
}
private static function generalConnect($connectionData)
{
if(is_array($connectionData))
{
$conn = &ADONewConnection($connectionData[0]);
$conn->PConnect($connectionData[1], $connectionData[2],
$connectionData[3], $connectionData[4]);
return $conn;
}
else throw new Exception('Wrong type of connection data, must be an array!');
}
private static function dsnConnect($connectionData)
{
if(is_string($connectionData))
{
$conn = ADONewConnection($connectionData);
return $conn;
}
else throw new Exception('Wrong type of connection data, must be a string!');
}
private static function xmlConnect($connectionData)
{
if(is_string($connectionData) && file_exists($connectionData))
{
$xml = simplexml_load_file($connectionData);
foreach($xml as $x)
{
$connArr[] = trim($x);
}
$conn = &ADONewConnection($connArr[0]);
$conn->PConnect($connArr[1], $connArr[2], $connArr[3], $connArr[4]);
return $conn;
}
else throw new Exception('Wrong file name or connection type!');
}
}
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